Car-truck.



No. 627,899. Patented June 27, I899,

G. M. BRILL.

CAB TRUCK.

(Application filed Nov. 9, 1897.) (No Model.)

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WI TNESSLS m: Noam! Firms co, PHOTO-LITHO. WASHINGTON. 17.6.

p UNITED. "STAT S PATENT OFFICE.

GEORGE MARTIN BRILL, OF PHILADELPHIA, PENNSYLVANIA.

CAR-TRUCK.

srnoxrrcn'rrorv forming part of Letters Patent No. 627,899, dated J'une27, 1899,

Original application filed July 3, 1897, Serial No. 643,339. Divided andthis application filed November 9,1897 Serial No.

657,969. (No modeL') parting from the spirit thereof. lhe one here Toall whom it may concern.-

Be it known that I, GEORGE MARTIN BRILL, a citizen of the United States,residing atPhiladelphia, county of Philadelphia, and State ofPennsylvania, have made'a certain new and useful Improvement inCar-Trucks, of which the following is a specification.

My invention relates to improvements in car-trucks generally, andespecially in trucks employed in passenger Service in connection fromthe side frames by links, which links carry springs cooperating with thelinks in supporting the semi-elliptic springs from the side frames.

My present improvements relate to the con.- struction of the links forsupporting the semielliptic springs from the truck-frame.

My invention therefore consists in the construction and combination ofparts hereinafter described, and further pointed out in the claims.

In the drawings forming part of this specification, Figure 1 is a sideelevation of a cartruck embodying my improvements; Fig. 2, a plan viewthereof; Fig. 3, a side elevation, enlarged, of one end of the truck,showing a modified form of link; Fig. 1, an enlarged longitudinalsectional elevation of a portion of the truck side frame and thesuspendinglink; and Fig. 5 an enlarged transverse sectional elevationthrough a portion of the side bar of the truck-frame and the link,showing the splayed position of the link while in use.

Similar numerals of reference indicate like parts throughout the severalviews.

The truck and its associated parts, with the exception of the links, ashereinafter described and claimed, foim no part of my present invention,'and therefore any suitable form of truck canbe employed withoutdeillustrated, to which my inventionihas been employed, comprises theaxles 1, wheels 2, aXle-boxes'S, and a truck-frame comprising sideframes 4, made up of the side bars 5, in verted- U-shaped axle-box yokesor pedestals 6, between which and the axle-boxes 3 extend axle-boxsprings 7, the outer legs of the yokes being provided with extensions 8,tied trans-. versely together by an angle-iron cross-bar 9, seated in arecess in the end of said extensions, the lugs or arms of the yokesbeing braced by a cross-bar 10 and by anintermediate pedestal tie-bar11, secured to the inner yoke-arms. v

The bolster consists of a cross-bar 12, ex tending transversely of thetruck and lying under the side bars 5, and an inverted arched bar 13,lying between transoms l4,extending between brackets 15, formed on theinner side of the bars 5, the cross-bar 12 of the arch-bar restingon acentral strap 16, secured to the semi-elliptic springs 17, which latterextend in the same plane as the side bars and lie below them, the end ofthe cross-bar carrying an upwardly-extending bifurcated yoke 18, forminga support for the side bearings of the truck, the yoke 18, cross-bar 12,and spring 17 being secured together by straps 19 passing around theband 16 and through the ends of the bar 12 and flanges 20 at. the bottomof the yokes 1S. v

The foregoing describes a truck illustrated in connection with myinvention recited in'the foregoing application, to which cross-referenceis hereby made for more specific details.

, The object of my presentinvention is to provide efficient means forsupporting the semielliptic springs, which in their turn support thebolster from the side bars of the truckframe, the bolster tying thesprings on each side of the truck together, so that they can movetransversely and longitudinally in unison one with the other thesuperposed yoke which is the subject-matter of my present invention,will now be described. I

It is one of the objects of the invention, recited in thebefore-mentioned application, to extend the spring-base or resilientsupport for the bolster as close to the axle-box pedestals as convenientin order to provide a more thorough support for the car on the truckthan is had where the spring-support is centered about the bolster inthe usual form of truck.

I form links or hangers for the semi-elliptic springs 17 as follows:Adjacent the yokes or pedestals ti a perpendicularly-disposed apertureis formed in enlargement-s 21 inthe side bars 5, the apertures comprising a circular depression or socket 22 and a conical opening 23therefrom, leading from the bottom of the'side bar. Thedepression 22forms, with the devices :hereinafter described, one element of thetball-and-socket joint, the other element consisting of thesemisphericalhead 24, seated in the recess or socket 22 in the sidebat-5 and extending into the aperture in the side bar, thus forming aball-and-socket-joint connection with the side bar for a depending bolt'25, on which the head 24 is formed. The bolt depends from the side barand is exteriorly screw-threaded at 26 and provided withia nut 27whichlatter is threadedlto move upon the threaded end of the bolt,thenut being provided with a semispherical boss 28, havingan aperture forallowing the boltto pass through it, above which is a casting 29, havinga semispherical seat 30, forming a socket for the boss 28, which casting29 is prosided with a seat 31 for the ends 32 of the leaves of thesemi-elliptic springs 17,, which leaves are likewise provided withapertures 33, through which the bolt passes. At the point where the bolt25 passes through the leaves32 of the spring 17 and the casting 29 it iscontracted, as at 34, longitudinally to allow of its assuming an angular.pos'ition,.as shown in Fig. 5, carrying withit the-nut and itssuperposed ball and allowing the spring and its supporting-castingtoremain horizontal. The hangers or links are thus splayed outwardly inorder to give a firm'support for the bolster and to enable it tomaintain its central position on the truck and to prevent itfrom movingover the center. This form of 'link suspension em bodiesaball-and-socket connection both between the ends of the semiellipticsprings and the suspending-boltsand between the suspending-bolts'andthetruckframe,allowing the bolster and semi-elliptic springs to swingtransversely of the truck inunison, at the same time allowing slightlongitudinal movement of the bolster and springs and links, the latterbeing limited onlyby the transonis, as shown in Fig. 2.

In themodified form shown in Fig. 3 a spiral spring 35 encircles thebolt 25 and extends between the ends 32 of the semi-elliptic springsandthe under side of the side 'bar 5. The addition of this spring servesas a means for equalizing the stress between the ends of the springsconnecting the links on each of said frames, and a bolster supported onsaid springs so as to swing in unisonwith said links, substantially asdescribed.

2. The combination with the side bar, the bolster, and a leaf-springsupporting the bolster, of a bolt for supporting the spring, said bolthaving a direct ball-and-socket connection with both the side bar andspring, substaptially as-described.

3. The combination with the side bar, of theheaded bolt dependingtherefrom, a seat on the bolt,a ball on the seat, a socket on the ball,and a leaf-spring on the socket, substantially as described.

4. The combination with the side bar, of the headed bolt dependingtherefrom, a seat on the bolt, aball on the seat, an apertured socket onthe ball through which the bolt passes, the seat inthe socket, and aleafspringin said latter seat having an aperture through which the boltpasses,'substantially as described. p i 5. The combination with the sidebar, of the headed bolt depending therefrom, an exterior thread on thelower part of the bolt, a nut having a spherical enlargement engagingthe thread, a socket on the bolt resting on the enlargement, a seat inthe socket, and a spring resting on the seat, substantially asdescribed.

6. In a car-truck, the combination-with the side frames, havingperpendicular openings formed therein, of the cross-bolster, theleafspring supporting the bolster, and the inflexible links exten dingthrough said openings and pendent from the side frames at a point abovethe bottom of said opening, the leaf-springs having an articulatedsupport on said links, substantially as described.

7. In a car-truck, the combination with the side frames, of thecross-bolster, the semi-e1 .liptic springs supporting the bolster belowthe side frames, the headed bolts pendent forming a seat for the ends ofsaid springs,

said connection movably engaging said enlargement, substantially asdescribed.

9. I11 a car-truck, the combination with the side frames, of linkssuspended by engage-v ment with an integral portion of said frames andadapted to swing both longitudinally and transversely from a pointwithin said frames, semi-elliptic springs movably secured to the ends ofsaid links, and a bolster resting on said springs below the side bars,substantially as described.

10. In a car-truck, the combination with the side frames each comprisingtwo pedestals, an upper longitudinal beam and a lower longitudinal beam,of a car-body-supporting bolster, half elliptic springs upon which theends of said bolster rest, and link appliances having a universalconnection alike to the ends of said springs and to the upper beam, thesuspension of the links being had from between the sides of the upperbeam, sub,- stantially as described.

l1. 'Inacar-truck, the combination with the side frames, of a car-body-su pportin g bolster,

half-elliptic springs upon which the ends of I said bolster rest, andlinks suspended from a point within the side frames and supporting theends of said halfelliptic springs, said suspension and support being hadby univer v sal connections, substantially as described.

12. In a car-truck, the combination with the side frames having upper'chords, of a carbody-supporting bolster, half-elliptic springslongitudinally disposed in relation to the side frames and supportingthe bolster, and nonextensible pendent links flexibly supported on theside frames and adapted to swing from a point above the bottom of theupper chord, the lower ends of said links being movably secured to theends of said half elliptic springs, substantially as described.

Signed in the city and county of'Philadelphia, State of Pennsylvania,this 21st day of October, 1897.

GEORGE MARTIN BRILL.

Vitnesses:

HENRY O. ESLING, EDW. P. RAWLE.

